Author
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Noel, Gregory |
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Submitted to: Meeting Proceedings
Publication Type: Proceedings Publication Acceptance Date: 1/6/2004 Publication Date: 2/29/2004 Citation: Noel, G.R. 2004. Soil management for soybean production and its effect on soybean cyst nematode. Proceedings. VII Soybean Resistance Conference. Pp. 304-309. Interpretive Summary: Technical Abstract: Soybean cyst nematode [SCN], Heterodera glycines Ichinohe, is established through out the world where ever there is intense soybean [Glycine max (L.) Merr.] production or a long history of production. The nematode is adapted to both tropical and temperate environments and causes crop loss in soils that range from light textured sands to heavier textured soils with organic matter of 6-8%. Research on no-till soybean production and its effects on SCN population dynamics has been studied in both the southern and northern production areas in the USA. Results are contradictory with some research indicating reduced numbers of SCN in no-till production and other research demonstrating increased numbers of SCN following establishment of no-till soybean production. Data indicating that higher pH and calcium levels result in larger numbers of nematodes was developed recently in the USA and exists anecdotally in the People's Republic of China and in Brazil. Higher levels of organic matter are associated with lower populations of SCN, presumably by increasing nematode antagonists. Soybean production using narrow row spacing has no long-term effect SCN numbers. |
